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2212425551 = 74317342487
BaseRepresentation
bin1000001111011110…
…1110111101001111
312201012001212022002
42003313232331033
514012340104201
61003311542515
7105553210160
oct20367567517
95635055262
102212425551
11a35947076
12518b2aa3b
1329349225b
1416db93767
15ce37376b
hex83deef4f

2212425551 has 16 divisors (see below), whose sum is σ = 2602305024. Its totient is φ = 1841513184.

The previous prime is 2212425547. The next prime is 2212425571. The reversal of 2212425551 is 1555242122.

It is a happy number.

It is not a de Polignac number, because 2212425551 - 22 = 2212425547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212425511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30830 + ... + 73316.

It is an arithmetic number, because the mean of its divisors is an integer number (162644064).

Almost surely, 22212425551 is an apocalyptic number.

2212425551 is a deficient number, since it is larger than the sum of its proper divisors (389879473).

2212425551 is a wasteful number, since it uses less digits than its factorization.

2212425551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42710.

The product of its digits is 8000, while the sum is 29.

The square root of 2212425551 is about 47036.4279149682. The cubic root of 2212425551 is about 1303.0354219458.

Adding to 2212425551 its reverse (1555242122), we get a palindrome (3767667673).

The spelling of 2212425551 in words is "two billion, two hundred twelve million, four hundred twenty-five thousand, five hundred fifty-one".

Divisors: 1 7 43 173 301 1211 7439 42487 52073 297409 1826941 7350251 12788587 51451757 316060793 2212425551